From Essential Rubber Formulary: Formulas for Practitioners

17.1 Solid Rubber Soling for Footwear

Ingredient

phr

  1. SS RMA 1X

70.00

  1. Butakon S 8551

30.00

  1. Sulfur

2.50

  1. Vulcafor F

1.50

  1. Zinc oxide

5.00

  1. Stearic acid

1.00

  1. Fortafil A.70

50.00

  1. Triethanolamine

1.00

  1. Coumarone-indene (CI) resin

3.00

  1. Nonox EXN

1.00

  1. Vulcafor fast brown color

1.00

Total

166.00

Note:

Cure for 30 minutes at 150 C.

Wallace plasticity = 45; Mooney scorch time (MS 1+3) at 120 C = 10 minutes; Tensile strength = 205 kg/cm2; Ultimate elongation = 500%; Modulus at 300% elongation = 70 kg/cm2; Shore hardness = 80 A.

17.2 Black Heel for Footwear

Ingredient

phr

  1. SS RMA 4

35.00

  1. Whole tire reclaim

130.00

  1. Pine tar

6.00

  1. Stearic acid

3.00

  1. Zinc oxide

5.00

  1. High abrasion furnace (HAF) black

40.00

  1. China clay

15.00

  1. Sulfur

3.00

  1. Accelerator MBTS

1.50

  1. Tetramethylthiuram disulfide (TMT)

0.10

Total

238.60

Note:

Cure for 10 15 minutes at 153 C.

Specific gravity = 1.30; Wallace plasticity = 35; Mooney scorch time (MS 1+3) at 120 C = 10 minutes; Tensile strength = 140 kg/cm2; Ultimate elongation = 450%; Modulus at 300% elongation = 68 kg/cm2; Shore hardness = 75 A.

Alter the accelerator system as required to match processing conditions. Reclaimed rubber is added on the basis of rubber hydrocarbon at 50%.

17.3 Brown Soling for Footwear

Ingredient

phr

  1. Smoked sheet

100.00

  1. Stearic acid

2.00

  1. CI resin

10.00

  1. Pine tar

1.00

  1. Antioxidant

1.00

  1. Zinc oxide

10.00

  1. Hard clay

175.00

  1. Magnesium carbonate

40.00

  1. Red oxide

5.00

  1. Sulfur

4.00

  1. MBTS

1.00

  1. TMT

0.50

Total

349.50

Note:

Cure for 10 15 minutes at 153 C.

Specific gravity = 1.40;

Copyright William Andrew Inc. 2007 under license agreement with Books24x7

Products & Services
Reserve Batteries
Reserve batteries are designed to retain their charge during long storage periods. The electrolyte is kept separate from the rest of battery to avoid self-discharge.
Chemical Process and Petrochemical Gases

Chemical process and petrochemical gases are materials used in the production of compounds or products. They are used in processes such as inerting, blanketing, purging, sparging, and stripping. These gases are used in many applications including treatment and sterilization, medicine, energy solutions, and manufacturing.

Industrial Gases
Industrial gases are pure elements, molecular compounds or mixtures that are gaseous or vaporous at room temperature and pressure.
Silicone Adhesives and Sealants
Silicone adhesives and sealants have a high degree of flexibility and a very high temperature resistance (up to 600° F), but lack the strength of other epoxy or acrylic resins.
Conductive Compounds
Conductive compounds provide an electrically and/or thermally conductive path between components.

Topics of Interest

Appendix List Appendix 1: Scorching of Rubber A Study Formula Appendix 2: Specific Gravity and Volume Cost Appendix 3: Equivalent Chemical Names for Trade Names Appendix 4: Useful Conversion...

15.1 Introduction Rubber pads are used between wooden sleepers and rails in railway tracks. Asian and European countries have good market potential for this product. Ingredient Alternate I (phr)...

11.1 Introduction Molded rubber components for the automotive industry have a very high market potential. These components are used in both original equipment manufacture and replacement markets.

12.1 Introduction Tire retreading is a prospective industry. Old tires of cars, trucks, and other transport vehicles are repaired and retreaded with suitable tread compounds to give satisfactory...

Natural Rubber Ingredient Amount (pphr) Compound A Standard Curing conditions: 35' @141 C Smoked sheet 100 HAF black 50 Stearic acid 2.5 Pine tar 4.5 Zinc oxide 5 CBS 0.5 PBN 1.0...

Product Announcements
Heter Electronics Group Co., Ltd.
Memory Protection Devices, Inc.